Apparatus for screening, sorting, and handling material



B. W. PAPE Nov. 18, 1930.

APPARATUS FOR SCREENING, SORTING, AND HANDLING MATERIAL Original Filed March 21. 1925 2 Sheets-Sheet 1 awe who's flr/mr WP/IPE Nov. 18, 1930. B, w, PAPE 1,781,857

APPARATUS FOR SCREENING, SORTING, AND HANDLING MATERIAL Original Filed March 21, 1925 2 s s 2 attain a Patented Nov. 18, 19 30 UNITEDHSTAT'FESF BYRON w. PAPE, on SALT LAKE CITY, UTAH APPARATUS non. SCREENING, soBTINe, AND HANDLING MATERIAL v "Original application filed March 21, 1925, Serial No. 17,224. Divided and this application filed May 12, 1926. Serial no. 108,623.

My invention relates to'handling coal in retail coal yards .or distributing depots, and has for its object to provide aneconomical process for handling, screening and trans 5 ferring coal from a coal transporting dump car into storage piles and for handling, screening and loading from a coal transporting dump car into delivery vehicles and for reclaiming and loadingfrom storage piles 10 into vehicles and the apparatus for carrying out the process. This'application is a division of application Serial No. 17 ,224, filed March 21,1925.

While I have shown in the drawings, and shall hereafter refer to the material to be handled as coal, it will be understood that other material, such as burned lime, gravel and beets, may be handled, assortedyand screened and loaded with equal facility.

In the drawings in which I haveillustrated appropriate mechanisms bywhich the process maybe carried out, Figure l is. a perspective of a machine by which the screening, assorting and elevating of the material may be accomplished. Figure 2 is a side 'elevationof the opposite side of the extensionchute from that shown in Figure 3, parts cut away. Fig-' ure 3 is a diagrammatic longitudinal vertical section of the apparatus showing the chain belt operation and supporting rollers. I Figure 4 is an enlarged side elevation of the hinge connection between the main chute and the extension chute. Figure 5 is a side elevation of the same hinge showing the bearing sleeve. Figure 6 is a plan view of one ofthe stub axles. Figure 7-is an enlarged side elevation of the hinge connection between the main chute and the extension chute. Figure 8 is a side elevation of the same hinge showing the bearing sleeve. V 7

Theelevating, sorting, screening and delivery of the material is accomplished by means of a portableconveyorhaving means connected therewith for screening, a'ssorting and delivering the material "as desired.

My apparatus consists of a frame I triangular in side elevation, which is mounted on a channel iron beam N. The base bars-3 of said frame I are supported and mounted 0 on caster rollers R, which are swiveledon the the sprocket chain engages.

lower ends of externally threaded standards 4;, that in turn are engaged with internal threads in the housings 6. Crank rods are connected with the upper ends of said standards 4: to turn the standards and thereby raise and lower thefoot portion F of the apparatus. The elevator chute T is supported by a brace member 8 which is parallel Wltll'lihfi hypotenuse portion 9. of'said frame, and is secured to the vertical portion of said frame I. A guideistrip is provided above each of the chains E to prevent the chainsand the scraper blades G from raising off the bottom S of the chute Tlwhen the extensionchute Ta is above the plane of the chute T. The

said whels W and the caster rollers R are each spaced from' its respective coacting wheel and roller far enough to allow them the sides of said foot portion 'F. A guide strip=19 is secured on the upper side of the foot portion F by means of angle brackets and extends outwardly. Said: guide strip 19 also-extendsion an incline} along the-up per edge of the'chute T and to this portion of said guide strip 19 the aprons 33 are hinged. The'guidestrips 19 and the aprons 33 form a hopper and-said hopper directs the falling and sliding material onto the foot portion F, and prevents it from falling behind-the foot -portion The aprons 33 may be folded one over the other inside the. chute T to aiford the proper clearance when the apparatus isbeing moved ahead with the foot portion F in place, and may readily be folded outwardly to form thei'hopper when the material is falling and sliding onto the,

foot portionF. Themotor M is mounted on the base portion of said frame with its shaft geared to a counter-shaft 10, which is jour- 'nalled in bearings mounted onthe vertical standards "11. A spur gear 121s secured on the end portion of said counter-shaft "1O which has teeth thereon": meshing with the 1 teeth 'of a gear 'wheel '13,'withits shaft 14 also mounted on said vertical standards f11.- V v A sprocket wheel 1 5 is also secured on said shaft 14, and is the driving wheel over which through the sides of saidchute T and has another sprocket wheel on the end opposite said sprocket wheel 17. A sprocket chain 41 is engaged by said sprocket wheel 40and is carried over a sprocket wheel 42, which in turn is secured on a shaft 39that is mounted in bearings which are secured in the outer end of the extension chute Ta. Sprockets J are also secured on the said shaft 39, which chute when the apparatus isin use.

An extension chute T0; is provided by which the material may be raised or lowered to a higher or to a lower level than by the said chute T. The said extension chute Ta is connected with said chute, T at the sleeve bearings 46 and the said chains E are operatedaround the sheet Sa in the same manner and direction as around the sheet S. The outer end portion of'said extension chute Ta may be raised and lowered by the cables 20 which are run over sheave pulleys that are mounted on the upper end of the said frame I and-the other endof chute Ta is connected by the circular sheets 22 which are journalled on the bearings 46; and by the sheet Sa having a portion thereof bent in a circular groove to engage partially around the said shaft 18, and with the sheet S above the grooved or curved portion ofsaid sheet Sa. This construction allows both sheets to be brought to interior.

than the sheet S or allows the sheet Sa to be inclined downward from the said shaft 18, by the hinged connection between the chute T and the chute Ta. Onthe upper end of each side of the chute T is secured sheets 43 having a semi-circular segment 44 cut from its Covering the said sheet 43 is another circular sheet 45 which, together with the said sheet 43, is secured on the side of said chute T. The central portion of said sheet 45 is cut out to receive the short sleeve bearings 46 which bearings are secured thereto by counter-sunk bolts. On the adjacent endof the said chuteTa is secured a metal sheet 22 having a circular extensionwing conforming with the segment opening 44 of the sheet 43, which extension wing isaxially bored or cut same inclination.

away to surround the said sleeve bearings 46 and form a journal therefor. The ends of the sheet 43 are at right angles to the chute T and the upper end is diametrically in line with the center of the bearings 46. The upperportion of the end of the-sheet22is cut on a radial line 47 extending from the wing extension at right angles to the sides of said sheet,.in o1 der that when the extension chute Tais'raise-d to the same incline plane as the chute T that said radial cut 47 will abut against the end of the sheet 43. "The sheet 43 and the sheet 22 are on a vertical :plane; and

the said sheet 45 holds the sheets 43 and 22 with a screening and sorting member V by 1 the adjustable connecting rods 30. To achieve the best results it is preferable that the point of attachment ofthe cable 24 to the frame I be in a plane well above the horizontal plane of the shaft 18. By so arranging the point of pivot for the cable 24, the arm 23 of the bell crank will be maintained at the The said screen V is pivoted to the sides of the chute Ta below the discharge end of said chute. The said screening and sorting member V has detachable screens 26 which are carried in a supporting frame Va to carry the coarser material over the screen, while the finer particles will pass between the mesh of said screen and fall against the sheet'25 and by it be directed into onepile or vehicle. Another screen and die recting sheet may-be provided if more than two grades of material are desired.

Even though the inclination of the chute Twmay be changed from time to time the arrangement of. the screening and sorting member of my invention insures that that member will remain at a constant inclination. The movement of the bell crank levers23, when the "position of chute Ta is changed, compensates for the tendency'of the screen to assume a different inclination.

Inasmuchas the degree ofscreening depends uponthe rate'at which the material passes over the member26, and inasmuch as this-rate is dependent upon the inclination of the screen, myinvention insures a uni:- form screening of the material, even though the chute Ta is raised or lowered. In the absence ofsuch a provision as herein contained, it would be necessary to adjust the screen each time the chute Ta is raised or lowered should auniform screening be desired.

It will be observed that the rods 30 are provided with a series of apertures, longitudinal of therods, adapted to receive bolts on the screen member. By placing the bolts in different apertures, variations in the screening may be obtained. 4 The inclination of the screen will thus be altered, resulting in variations in the rate'at which the material will traverse the screen.

The operation of the apparatus is as follows: f

The motor -M is started and the power transmitted to the chains E through the counter-shaft 10, the spur gear 12, the gear wheel 13, the shaft 14, the sprocket wheel 15, the chain 16, the sprocket wheel 17, the shaft 18, the sprocket wheel 40, the chain 41, the sprocket wheel 42, and the shaft 39, which shaft has a small sprocket wheel 38 on each end portion thereof, over V and'by which the said chains E are operated.

As the said chains E are moved up the chute T the scraper blades G slide on the said sheet S and the material is moved off of the foot portion F and up the inclined chute T and over the extension chute Ta, with the material resting onand sliding over the said sheet Sa, as indicatedv by the arrows at. The said chains E are operated over the end rollerH of the foot piece, and sprocket wheels J of the extension chute. As indicated by the arrows 11, the said chains pass under the rollers Hflthen over'the rollers H and then around said sprockets J and over the rollers. H

and then under the .rollers H" and around the rollers H. All of the said rollers H to H inclusive are sprocket idler rollers. The

rollers I-I, H H and H idle on stub shafts and the rollers H idle on the shaft 18. The rollers H are encased in the housings U to prevent coal from falling onto and injuring said rollers or retarding the operation of said chains.

- When desiring to change the inclination of the extension chute Ta, the winches 28 on which the cables'20 are wound are rotated on their axes by the crank handle 37 which raises or lowers the delivery end of said chute. It is evident that the chainsE passv ing over the idler sprockets H and over the idler sprockets H at the hinge joint travel an equal distance at all times as the chute Ta is raised or lowered;

Having thus described the apparatus by whichthe new features of the invention may be carried out, Idesire to secure by Letters Patent and claim rv 7 1. In combination with a conveyor having an adjustable discharge portion,an apparatus for sorting material comprising a bell crank mounted on the discharge portion, a screening member supported by the bell crank, means to adjust the inclination of the screening member, and means coacting with a fixed portion of-the conveyor and the bell crank for operating the screening member.

2. In a conveyor having an endv portion adapted to pivot on the main portion of the conveyor, a sorting device, comprising a screening member pivoted on the end portion, a bell crank lever adapted to maintain the ing apparatus. V

4. In a conveying apparatus having an adinclination regardless of the elevation of the discharge portion, said means including a bell crank lever pivoted to the discharge portion of the conveying apparatus, onearm of the bell crank lever being connected to the screen member and the other arm being connected to a fixed portion of the conveyjustable portion, a sorting devicecomprising V a frame member rotatably mounted on the ad ustable portion, screening means mounted on the frame member, means including a bell crank pivoted to the adjustable portion of the conveyor and connected with a fixed portion of the conveyor for maintaining the frame at a constant inclination regardless of the inclination of the supporting member.

5. A sorting apparatus for aconveyor having a fixed portion and an adjustable discharge portion, comprising a screening member attached to the discharge portion of the conveyor,.means for adjusting the inclinacluding a bell crank pivoted to the discharge portion of the conveyor, a link connecting- 1 one arm. of thebell crank with the screening member, and a connection between the other arm of the bell crank and a fixed portion of the conveyor. V

discharge portion, a screening member hav ing one end pivoted to said adjustable por- .6. In combination with-aconveyor hav- 7 ing a supporting frame, and an adjustable J crank and adjustablyconnected with the" I screeningmember, and means for connecting the other arm of the bell crank with the supporting frame of the conveyor- In testimony whereof I have aifixed .my

signature. I 7 7 BYRON W. PAPE.

100 tlon of the screening member, and means f 

